Alert archive / Louisiana / Freeze Warnings in 2014

Freeze Warning 5, NWS Lake Charles, LA

November 17, 201410 parishes in Louisiana; 4 counties in Texas

NWS Lake Charles, LA issued this freeze warning at Nov 17, 2014, 3:29 AM CST for 10 parishes in Louisiana; 4 counties in Texas. It took effect at Nov 17, 2014, 11:00 PM CST. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Nov 17, 2014, 3:29 AM CST (09:29 UTC)
In effect from: Nov 17, 2014, 11:00 PM CST
Expired: Nov 18, 2014, 9:00 AM CST
In force: 10 hr
Issued by: NWS Lake Charles, LA

Counties Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Cameron Parish, LA, Evangeline Parish, LA, Lafayette Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Vernon Parish, LA, Hardin County, TX, Jasper County, TX, Newton County, TX, Tyler County, TX

The radar

The Ft Polk radar (KPOE), 58 km from the middle of the area, began a volume at 09:29 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 9.5 hours before the alert went out and 317 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 496 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 825 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 295 m²/s²
0-3 km storm-relative helicity: 414 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 5.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lake Charles, LA wrote its last area forecast discussion before this freeze warning went out at Nov 16, 5:53 PM CST, 9 hours 36 minutes earlier.

Area forecast discussion, Nov 16, 5:53 PM CST, 9 hours 36 minutes before

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Hazardous weather outlook, Nov 16, 5:51 AM CST, 21 hours 38 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAKE CHARLES LA
551 AM CST SUN NOV 16 2014

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-
171200-
VERNON-RAPIDES-AVOYELLES-BEAUREGARD-ALLEN-EVANGELINE-ST. LANDRY-
CALCASIEU-JEFFERSON DAVIS-ACADIA-LAFAYETTE-UPPER ST. MARTIN-
VERMILION-IBERIA-ST. MARY-LOWER ST. MARTIN-WEST CAMERON-
EAST CAMERON-TYLER-HARDIN-JEFFERSON-ORANGE-NORTHERN JASPER-
NORTHERN NEWTON-SOUTHERN JASPER-SOUTHERN NEWTON-
551 AM CST SUN NOV 16 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
LOUISIANA...SOUTH CENTRAL LOUISIANA...SOUTHWEST LOUISIANA...WEST
CENTRAL LOUISIANA AND SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT

WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED TODAY
AND TONIGHT. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS...WITH POOR
INSTABILITY THE MAIN LIMITATION. THE PRIMARY SEVERE WEATHER RISK
IS DAMAGING STRAIGHT LINE WINDS AND TORNADOES.

A STRONG COLD FRONT IS FORECAST TO MOVE THROUGH THE AREA
TONIGHT...BRINGING AN END TO THE SHOWERS AND THUNDERSTORMS. NORTH
WINDS BEHIND THE FRONT WILL BE STRONG AND GUSTY...ESPECIALLY OVER
THE COASTAL COUNTIES AND PARISHES.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

COLD AIR WILL CONTINUE TO SPILL INTO THE REGION MONDAY AMID
MODERATE TO STRONG AND GUSTY NORTH WINDS. A WIND ADVISORY MAY BE
NEEDED ON MONDAY...ESPECIALLY ALONG AND SOUTH OF INTERSTATE 10.
TEMPERATURES NEAR OR BELOW FREEZING ARE EXPECTED MONDAY NIGHT
AND TUESDAY NIGHT...AND FREEZE OR HARD FREEZE WARNINGS MAY BE
NEEDED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT.

GMZ430-432-435-450-452-455-470-472-475-171200-
SABINE LAKE-CALCASIEU LAKE-VERMILION BAY-
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM-
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM-
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY
LA OUT 20 NM-
WATERS FROM CAMERON LA TO HIGH ISLAND TX FROM 20 TO 60 NM-
WATERS FROM  INTRACOASTAL CITY TO CAMERON LA FROM 20 TO 60 NM-
WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY LA FROM
20 TO 60 NM-
551 AM CST SUN NOV 16 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NORTHWEST
GULF OF MEXICO.

.DAY ONE...TODAY AND TONIGHT

WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED TO
AFFECT THE REGION TODAY AS A LOW PRESSURE SYSTEM OVER
SOUTHEAST TEXAS LIFTS TO THE NORTHEAST. THERE IS A SLIGHT RISK
OF SEVERE THUNDERSTORMS...WITH POOR INSTABILITY THE MAIN
LIMITATION. THE PRIMARY SEVERE WEATHER RISK IS STRONG WIND GUSTS
IN EXCESS OF 34 KNOTS AND WATERSPOUTS.

THE SHOWER AND THUNDERSTORM ACTIVITY WILL COME TO AN END FROM WEST
TO EAST LATE TONIGHT AS A STRONG COLD FRONT SWEEPS THROUGH
THE REGION. STRONG AND GUSTY NORTH WINDS ARE EXPECTED IN THE WAKE
OF THE FRONT...AND A VARIETY OF MARINE HAZARDS HAVE BEEN ISSUED AS
A RESULT OF THESE WINDS AND THE RESULTING BUILDING SEAS. IN
ADDITION...A LOW WATER ADVISORY IS IN EFFECT LATE TONIGHT INTO
EARLY MONDAY FOR THE COASTAL LAKES AND BAYS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
STRONG AND GUSTY NORTH WINDS AND ROUGH SEAS WILL CONTINUE THROUGH
MONDAY INTO MONDAY NIGHT...GRADUALLY SUBSIDING TUESDAY AS HIGH
PRESSURE SETTLES INTO THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT.

13

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 16, 10:04 PM CST	Wind Advisory	LCH	Allen, Beauregard, Cameron, Lafayette, Saint Landry, Saint Martin	20 hr
Nov 17, 3:07 AM CST	Small Craft Advisory	LCH		31 hr
Nov 17, 3:29 AM CST	Hard Freeze Warning	LCH	Allen, Avoyelles, Beauregard, Evangeline, Rapides, Saint Landry and 1 more	27 hr

Nearby

Freeze Warnings in Louisiana, 2014 Freeze Warnings in Texas, 2014 Every freeze warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.